Ab=z Bc=x Ac=y. is the answer
I’m assuming 9? There isn’t a question so
The total cost of shipping a package with the cost of $15 exclusive if 5% insurance is 15.75 dollars. This is calculate by getting first the 5% of 15 dollars, 15 dollars multiplied by 5%, equal to 0.75 dollars. Then it will be added to the shipping cost of 15, which is equal to 15.75 dollars.
A,b,c, d that’s the answer